This post has been edited 1 times, last edit by "qhn" (Apr 19th 2011, 7:58am)
OK, try not to laugh. Scentricon System-- I was looking at termite baits LOL!There CAN be more then one valve to a zone, depending on how it's wired. But not common
A lot of times I see septic tank systems use the round 6" pits as a lid for the blow outs.. So this may be what your talking about
This post has been edited 2 times, last edit by "qhn" (Apr 19th 2011, 9:21pm)